440243101 has 8 divisors (see below), whose sum is σ = 467286840. Its totient is φ = 413326848.

The previous prime is 440243093. The next prime is 440243107. The reversal of 440243101 is 101342044.

It can be written as a sum of positive squares in 4 ways, for example, as 108056025 + 332187076 = 10395^2 + 18226^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 440243101 - 2³ = 440243093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440243107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24706 + ... + 38611.

It is an arithmetic number, because the mean of its divisors is an integer number (58410855).

Almost surely, 2^440243101 is an apocalyptic number.

It is an amenable number.

440243101 is a deficient number, since it is larger than the sum of its proper divisors (27043739).

440243101 is a wasteful number, since it uses less digits than its factorization.

440243101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63743.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440243101 is about 20981.9708559515. The cubic root of 440243101 is about 760.7305423546.

Adding to 440243101 its reverse (101342044), we get a palindrome (541585145).

The spelling of 440243101 in words is "four hundred forty million, two hundred forty-three thousand, one hundred one".